Yes, I know that, but I don't know how to do that in code. I've found the following post: http://stackoverflow.com/questions/105252/how-do-i-convert-between-big-endian-and-little-endian-values-in-c http://stackoverflow.com/questions/105252/how-do-i-convert-between-big-endian-and-little-endian-values-in-c where I've tried the method with the template<>, which definitely didn't give me a correct result. On that forum they're saying that char's don't have to be converted, but is that true?
Would it be possible for you to provide me with a code sample on how to convert a char* to little endian? I know it's probably a stupid question and I'm taking up your time, but I have to learn it somehow... Thanks in advance! Goblin_Queen wrote: > > Thanks for your reply, I had thought of that too because my search lead me > to such an answer. How can I convert a char* from big endian to little > endian? I googled for conversion examples but I only found conversions for > int. I know this is probably a stupid question, but I'm still learning > C++. > > > Dr. Stephen Henson wrote: >> >> On Wed, Mar 18, 2009, Goblin_Queen wrote: >> >>> >>> Hello, >>> >>> I'm writing a program that has to sign a SHA1-hash value. I'm using >>> OpenSSL >>> to do this. My program has to do the same thing as another program which >>> makes use of Microsoft Crypto API. In that program the method >>> "CryptSignHash" was used in order to sign the hash value. >>> >>> When I try to sign a dummy hash value with RSA_sign, the result is >>> different >>> from the result I get from CryptSignHash. I've been searching for a >>> while to >>> find the reason for this, but haven't found the solution yet. >>> >>> I've also tried to sign the hash with other signature methods in >>> OpenSSL: >>> RSA_private_encrypt and EVP_SignFinal. Those gave me an error when I >>> tried >>> them, but I don't really know the difference between those 3 methods, >>> the >>> documentation isn't very clear, and I'm very new to cryptography >>> functions >>> and OpenSSL. >>> >>> Can anyone help me with this and tell me what I should use to get the >>> same >>> result as CryptSignHash returns? >>> >>> If you need to see my code in order to help me, just ask, then I'll post >>> it. >> >> The output of CryptoAPI is in little endian format, OpenSSL and many >> others >> use big endian. Try reversing the bytes. >> >> Steve. >> -- >> Dr Stephen N. Henson. Email, S/MIME and PGP keys: see homepage >> OpenSSL project core developer and freelance consultant. >> Homepage: http://www.drh-consultancy.demon.co.uk >> ______________________________________________________________________ >> OpenSSL Project http://www.openssl.org >> User Support Mailing List openssl-users@openssl.org >> Automated List Manager majord...@openssl.org >> >> > > > -- View this message in context: http://www.nabble.com/Difference-between-RSA_sign-and-CryptSignHash-signature-tp22575898p22581485.html Sent from the OpenSSL - User mailing list archive at Nabble.com. ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org
